Trying to debug a "non-deterministic" DTD
Hello! First time poster. I hope this question hasn’t been up for discussion before – I was not able to find anything helpful in the archives. I have a DTD that I need to debug. The ”problem" is that Oxygen validates the DTD just fine, whereas some XML editors (e.g. XMetal) complain about a ”non-deteministic” content model. So, my question is, does Oxygen (15.2) has some kind of ”strict mode” DTD validation? Because I do not have access to some XMetal-debug-fo, I must use Oxygen to debug my DTD. Any help is greatly appreciated! /frank [cid:D69E52E6-83EC-4495-AFAC-6219CE5641B4] Frank Arensmeier | Expertinfo | Teknikinformation, XML-system och språkkonsulttjänster | frank.arensmeier@expertinfo.se<mailto:frank.arensmeier@expertinfo.se> | Älvtomtagatan 14 703 42 Örebro | Mobile +46 70 233 90 39 Please consider the planet before printing this e-mail.
Can't tell you if oXygen can help you find the non-deterministic content model, but some thoughts: * Use RELAX NG * Non-determinism occurs when a parser would not be able to tell which "branch" of the content model it is matching. E.g. <!ELEMENT duck ( a+, b*, a+ )> If a <duck> has only an <a>, a parser would not know whether it should match the first 'a+' or the second one. * Use RELAX NG * Even if you can't use XMetal, quite a few simple free tools will do this for you. I am quite fond of `xmllint` for this purpose. * Use RELAX NG * If you post your DTD, I'm sure any number of us would be happy to point out where the non-determinism is. (This is your best bet for a one-time problem, but doesn't scale well, of course :-) * Use RELAX NG
First time poster. I hope this question hasn’t been up for discussion before – I was not able to find anything helpful in the archives. I have a DTD that I need to debug. The ”problem" is that Oxygen validates the DTD just fine, whereas some XML editors (e.g. XMetal) complain about a ”non-deteministic” content model. So, my question is, does Oxygen (15.2) has some kind of ”strict mode” DTD validation? Because I do not have access to some XMetal-debug-fo, I must use Oxygen to debug my DTD.
Any help is greatly appreciated!
Hello Frank, On what platform are you running Oxygen (Windows, Mac, Linux)? Oxygen uses Xerces for XML parsing and validation against DTD. For DTD validation there is just the default mode, there is no "strict mode". The options that affect DTD validation in Oxygen are located in Options
Preferences, XML > XML Parser
Are you validating the DTD itself or an XML against the DTD? If you validate the XML against the DTD, you can also use LIBXML (xmllint). In Windows you can also use MSXML 4.0 or MSXML.NET. You can find these in the the 'Custom Validation Engines' toolbar. Regards, Adrian Adrian Buza oXygen XML Editor and Author Support Tel: +1-650-352-1250 ext.2020 Fax: +40-251-461482 support@oxygenxml.com http://www.oxygenxml.com On 07.10.2014 14:34, Frank Arensmeier wrote:
Hello!
First time poster. I hope this question hasn’t been up for discussion before – I was not able to find anything helpful in the archives. I have a DTD that I need to debug. The ”problem" is that Oxygen validates the DTD just fine, whereas some XML editors (e.g. XMetal) complain about a ”non-deteministic” content model. So, my question is, does Oxygen (15.2) has some kind of ”strict mode” DTD validation? Because I do not have access to some XMetal-debug-fo, I must use Oxygen to debug my DTD.
Any help is greatly appreciated!
/frank
Frank Arensmeier | *Expertinfo* | Teknikinformation, XML-system och språkkonsulttjänster | frank.arensmeier@expertinfo.se <mailto:frank.arensmeier@expertinfo.se> | Älvtomtagatan 14 703 42 Örebro | Mobile +46 70 233 90 39
Please consider the planet before printing this e-mail.
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As Adrian mentioned, you can create an XML instance and validate that with LIBXML, this will show non-deterministic content models from DTDs. For example on: test.dtd ========= <?xml version="1.0" encoding="UTF-8"?> <!ELEMENT test (a*, b*, a*)* > <!ELEMENT a (#PCDATA) > <!ELEMENT b (#PCDATA) > <!ELEMENT c (#PCDATA) > test.xml ======== <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE test SYSTEM "test.dtd"> <test> </test> LIBXML will give System ID: .../test.xml Main validation file: .../test.xml Schema: .../test.dtd Engine name: LIBXML Severity: error Description: validity error : Content model of test is not determinist: (a* , b* , a*)* See also http://www.w3.org/TR/REC-xml/#determinism and Tim Bray notes in the annotated XML specification: http://www.xml.com/axml/notes/Determinism.html Best Regards, George -- George Cristian Bina <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger http://www.oxygenxml.com On 07/10/14 18:09, Oxygen XML Editor Support (Adrian Buza) wrote:
Hello Frank,
On what platform are you running Oxygen (Windows, Mac, Linux)? Oxygen uses Xerces for XML parsing and validation against DTD. For DTD validation there is just the default mode, there is no "strict mode". The options that affect DTD validation in Oxygen are located in Options
Preferences, XML > XML Parser
Are you validating the DTD itself or an XML against the DTD? If you validate the XML against the DTD, you can also use LIBXML (xmllint). In Windows you can also use MSXML 4.0 or MSXML.NET. You can find these in the the 'Custom Validation Engines' toolbar.
Regards, Adrian
Adrian Buza oXygen XML Editor and Author Support
Tel: +1-650-352-1250 ext.2020 Fax: +40-251-461482 support@oxygenxml.com http://www.oxygenxml.com
On 07.10.2014 14:34, Frank Arensmeier wrote:
Hello!
First time poster. I hope this question hasn’t been up for discussion before – I was not able to find anything helpful in the archives. I have a DTD that I need to debug. The ”problem" is that Oxygen validates the DTD just fine, whereas some XML editors (e.g. XMetal) complain about a ”non-deteministic” content model. So, my question is, does Oxygen (15.2) has some kind of ”strict mode” DTD validation? Because I do not have access to some XMetal-debug-fo, I must use Oxygen to debug my DTD.
Any help is greatly appreciated!
/frank
Frank Arensmeier | *Expertinfo* | Teknikinformation, XML-system och språkkonsulttjänster | frank.arensmeier@expertinfo.se <mailto:frank.arensmeier@expertinfo.se> | Älvtomtagatan 14 703 42 Örebro | Mobile +46 70 233 90 39
Please consider the planet before printing this e-mail.
_______________________________________________ oXygen-user mailing list oXygen-user@oxygenxml.com http://www.oxygenxml.com/mailman/listinfo/oxygen-user
_______________________________________________ oXygen-user mailing list oXygen-user@oxygenxml.com http://www.oxygenxml.com/mailman/listinfo/oxygen-user
participants (4)
-
Frank Arensmeier -
George Bina -
Oxygen XML Editor Support (Adrian Buza) -
Syd Bauman